Decade Resistance Box Manufacturer,Supplier and Exporter in India
Product Code : EL-P-10793
Quick Answer: The Decade Resistance Box is an electrical lab instrument in which resistance is dialled up in decades, with 4 mm spin-free terminals and an earth terminal on an anodised aluminium enclosure. It is offered in 3, 4, 5 and 6 dial versions.
Last updated: October 2026
Key Features
- Resistance is selected in complete decades, with 10 steps on each dial
- Pair of 4 mm spin-free terminals for a low resistance connection
- Earth terminal fitted to the housing
- Anodised aluminium, dust resistant enclosure
- Values calibrated to better than 1%, except the 0.1 steps, which are within 5%
- Each step can dissipate 1 watt of heat
Technical Specifications
| Specification | Value |
|---|---|
| Dial versions | 3 dial, 4 dial, 5 dial and 6 dial boxes |
| Steps per dial | 10 |
| Accuracy | Better than 1% of dialled reading (above 1 ohm); 0.1 steps within 5% |
| Power per resistor | 1 watt |
| Terminals | 4 mm spin-free captive socket head, for wires or banana plugs |
| Enclosure | Anodised aluminium, dust resistant, with earthing terminal |
| Internal connections | Printed circuit board |
| Resistors | Non-inductive, high stability |
About This Product
A decade resistance box gives a known, adjustable resistance in electrical experiments. Students set the value with the dials, one decade at a time, and use it in circuits to study how current changes with resistance, or as the known arm in bridge-type measurements. The current allowed through each decade is limited by the power rating of its resistors, so the setting should always suit the circuit being tested.
Frequently Asked Questions
Q1. How accurate is the Decade Resistance Box?
Resistor values are calibrated to better than 1%, except the 0.1 steps, which are within 5%. Accuracy is better than 1% of dialled reading above 1 ohm.
Q2. How much current can each decade carry?
Each resistor dissipates 1 watt, and the current for each decade is limited by the wattage dissipation per resistor.
Q3. How many dials does it have?
It is offered in 3 dial, 4 dial, 5 dial and 6 dial versions covering many ranges.
Related: Physics Teaching Aids, Multimeter, Digital Voltmeter, Snap Circuits.
For a quotation on the Decade Resistance Box, contact School Lab Equipment India.